US4574832A - Float level adjustment means - Google Patents

Float level adjustment means Download PDF

Info

Publication number
US4574832A
US4574832A US06/760,702 US76070285A US4574832A US 4574832 A US4574832 A US 4574832A US 76070285 A US76070285 A US 76070285A US 4574832 A US4574832 A US 4574832A
Authority
US
United States
Prior art keywords
float
flange
adjustment means
arm
level adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/760,702
Inventor
Peter S. Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FF Seeley Nominees Pty Ltd
Original Assignee
FF Seeley Nominees Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU45628/85A external-priority patent/AU577880B2/en
Application filed by FF Seeley Nominees Pty Ltd filed Critical FF Seeley Nominees Pty Ltd
Assigned to F.F. SEELEY NOMINEES PTY. LTD. reassignment F.F. SEELEY NOMINEES PTY. LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WRIGHT, PETER S.
Application granted granted Critical
Publication of US4574832A publication Critical patent/US4574832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K33/00—Floats for actuation of valves or other apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7358—By float controlled valve
    • Y10T137/7413—Level adjustment or selection means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7358—By float controlled valve
    • Y10T137/7439—Float arm operated valve

Definitions

  • This invention relates to adjustment means for the adjustment of a float of the type which is used to control opening and closing of a valve in a cistern.
  • valve arm is formed from metal this is sometimes achieved by bending the metal, but such a method is not available if the valve arm is formed from plastics material.
  • the main object of this invention is to provide improvements whereby float level can be easily adjusted, without the need for expensive adjustment means.
  • level adjustment means for a valve float assembly comprises a float arm and a float, the float having a circular side wall with a flange outstanding from it and extending around it helically, the float arm end having flange engaging surfaces slidable over the flange so that rotation of the float raises or lowers it to provide the level adjustment means, and thereby water level adjustment means.
  • level adjustment means comprise a circular float having aside wall, a flange outstanding radially from, and extending helically at least partway around the side wall, axially extending support surfaces on the flange, a float arm having flange engaging surfaces at one end and valve engaging means at the other, the flange engaging surfaces of the arm slidably engaging said flange support surfaces of the float so that, upon rotation of the float, the float moves in an axial direction with respect to the arm.
  • FIG. 1 is a top view of a valve float assembly
  • FIG. 2 is a side elevation of same
  • FIG. 3 is an end elevation of FIG. 2.
  • a valve float assembly 10 comprises a float 11 and a float arm 12.
  • Float 11 comprises convex upper end and base closure walls 20 and 21, and a circular side wall 22 connecting the closure walls.
  • the circular side wall 22 is provided with an outstanding T-flange 23, having flange portions 24 and 25 which extend above and below a central web portion 26 extending from the circular side wall 22.
  • the dimensions of the flange are such that the C-section hook plate will firmly but slidably engage the flange portions 24 and 25, which partly surround the side wall 22 in a helical manner so that rotation of the float will cause raising or lowering of the float with respect to the C-section hook plate 14, in turn causing raising or lowering of water level in a cistern containing a valve controlled by the float assembly 10.
  • float 10 together with its helical T-flange 23, comprises two identical half-float mouldings which are joined along helically and axially extending portions by a cement join 27 which bisects flange 23. Since the flange 23 is discontinuous the C-section hook plate can be positioned over it from either one of its ends. Axially extending ribs 28 restrain, but do not prevent, rotation of the float 11 with respect to its arm 12, and this feature improves security against possible loss of adjustment.
  • the end 30 of the arm 12 is provided with an apertured boss 31 by which it engages a valve (not shown), and a pair of actuating tabs 32, one of which, upon hinging of arm 12, will actuate a valve member.
  • a valve not shown
  • actuating tabs 32 one of which, upon hinging of arm 12, will actuate a valve member.
  • the arm 12 can be inverted, and this feature, combined with a selection of actuating tab 32, affords alternative mounting arrangements which can be useful in different valve installations.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Float Valves (AREA)

Abstract

Adjustment means for a valve float assembly comprising a float arm and a float, the float having a circular side wall with a flange outstanding from it and extending around it helically, the float arm end having flange engaging surfaces slidable over the flange so that rotation of the float raises or lowers it to provide the level adjustment means, and thereby water level height adjustment means.

Description

This invention relates to adjustment means for the adjustment of a float of the type which is used to control opening and closing of a valve in a cistern.
BACKGROUND OF THE INVENTION
In many applications of float valves, and particularly where such valves are used in evaporative coolers, there is a need to adjust the height of water level, and this is normally achieved by adjusting the effective height of a float with respect to its valve. If a valve arm is formed from metal this is sometimes achieved by bending the metal, but such a method is not available if the valve arm is formed from plastics material.
The main object of this invention is to provide improvements whereby float level can be easily adjusted, without the need for expensive adjustment means.
BRIEF DESCRIPTION OF THE INVENTION
In one embodiment of this invention level adjustment means for a valve float assembly comprises a float arm and a float, the float having a circular side wall with a flange outstanding from it and extending around it helically, the float arm end having flange engaging surfaces slidable over the flange so that rotation of the float raises or lowers it to provide the level adjustment means, and thereby water level adjustment means.
More specifically, level adjustment means comprise a circular float having aside wall, a flange outstanding radially from, and extending helically at least partway around the side wall, axially extending support surfaces on the flange, a float arm having flange engaging surfaces at one end and valve engaging means at the other, the flange engaging surfaces of the arm slidably engaging said flange support surfaces of the float so that, upon rotation of the float, the float moves in an axial direction with respect to the arm.
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the invention is described hereunder in some detail with reference to, and is illustrated in, the accompanying drawings, in which,
FIG. 1 is a top view of a valve float assembly,
FIG. 2 is a side elevation of same, and
FIG. 3 is an end elevation of FIG. 2.
In this embodiment a valve float assembly 10 comprises a float 11 and a float arm 12.
One end 13 of the float arm 12 is provided with a C-section hook plate 14 having upper and lower hooks 15 and 16 which extend for a short distance laterally and provide flange engaging surfaces. Float 11 comprises convex upper end and base closure walls 20 and 21, and a circular side wall 22 connecting the closure walls. The circular side wall 22 is provided with an outstanding T-flange 23, having flange portions 24 and 25 which extend above and below a central web portion 26 extending from the circular side wall 22. The dimensions of the flange are such that the C-section hook plate will firmly but slidably engage the flange portions 24 and 25, which partly surround the side wall 22 in a helical manner so that rotation of the float will cause raising or lowering of the float with respect to the C-section hook plate 14, in turn causing raising or lowering of water level in a cistern containing a valve controlled by the float assembly 10.
In the illustrated embodiment, float 10, together with its helical T-flange 23, comprises two identical half-float mouldings which are joined along helically and axially extending portions by a cement join 27 which bisects flange 23. Since the flange 23 is discontinuous the C-section hook plate can be positioned over it from either one of its ends. Axially extending ribs 28 restrain, but do not prevent, rotation of the float 11 with respect to its arm 12, and this feature improves security against possible loss of adjustment.
The end 30 of the arm 12 is provided with an apertured boss 31 by which it engages a valve (not shown), and a pair of actuating tabs 32, one of which, upon hinging of arm 12, will actuate a valve member. As shown in dotted lines, the arm 12 can be inverted, and this feature, combined with a selection of actuating tab 32, affords alternative mounting arrangements which can be useful in different valve installations.

Claims (5)

The claims defining the above invention are claimed as follows:
1. Level adjustment means for a valve float assembly comprising a float and a float arm comprising:
a circular float side wall, a flange outstanding radially from, and extending helically at least partway around the side wall, axially extending support surfaces on the flange,
and a float arm having flange engaging surfaces at one end and valve engaging means at the other,
the flange engaging surfaces of the arm slidably engaging said flange support surfaces of the float so that, upon rotation of the float relative to the float arm, the float arm is adjustably positioned along the flange support surfaces and thereby moves the float in an axial direction with respect to the float arm to define different fluid levels.
2. Level adjustment means according to claim 1 wherein said flange has a T-shaped cross-section and said one end of the float arm comprises a C-section hook plate which engages over portion of the flange.
3. Level adjustment means according to claim 2 wherein said float comprises two identical mouldings adhered together by a cement join which bisects the T-section flange.
4. Level adjustment means according to claim 1 further comprising a plurality of ribs spaced from one another around the flange and projecting outwardly from a support surface thereof, the ribs being of such dimension as to restrain but not prevent said rotation of the float.
5. Level adjustment means according to claim 1 wherein said valve engaging means of the float arm comprise an apertured boss and actuating tabs outstanding therefrom.
US06/760,702 1984-08-01 1985-07-30 Float level adjustment means Expired - Lifetime US4574832A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPG6334 1984-08-01
AUPG633484 1984-08-01
AU45628/85A AU577880B2 (en) 1984-08-01 1985-07-29 Float level adjustment means

Publications (1)

Publication Number Publication Date
US4574832A true US4574832A (en) 1986-03-11

Family

ID=25627283

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/760,702 Expired - Lifetime US4574832A (en) 1984-08-01 1985-07-30 Float level adjustment means

Country Status (1)

Country Link
US (1) US4574832A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683908A (en) * 1986-11-07 1987-08-04 Brewer Daniel J Eccentric float apparatus
US5937455A (en) * 1992-11-19 1999-08-17 Donati; William R. Electrically operated toilet water inlet valve system having a variable fill level
KR100560126B1 (en) * 2004-04-27 2006-03-17 강헌순 Ball

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB413352A (en) * 1933-01-16 1934-07-16 Edwin Griffiths Improvements in or relating to ball valves for cisterns
US1972331A (en) * 1932-03-02 1934-09-04 Dean Joseph Max Regulating means for the water level of flush boxes
US2009284A (en) * 1930-06-23 1935-07-23 Douglas K Warner Float control regulating valve
US2827916A (en) * 1955-11-14 1958-03-25 Clyde C Manchester Float valve
US2847025A (en) * 1954-11-29 1958-08-12 Abraham I Reitman Float-operated valve
US3004748A (en) * 1959-07-16 1961-10-17 Vernco Corp Float valve
US3331387A (en) * 1964-06-24 1967-07-18 Walters Manuel Float control means for use in water closets and the like
US3987813A (en) * 1973-02-26 1976-10-26 Plasson Maagan Michael Industries Limited Presettable valve actuator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009284A (en) * 1930-06-23 1935-07-23 Douglas K Warner Float control regulating valve
US1972331A (en) * 1932-03-02 1934-09-04 Dean Joseph Max Regulating means for the water level of flush boxes
GB413352A (en) * 1933-01-16 1934-07-16 Edwin Griffiths Improvements in or relating to ball valves for cisterns
US2847025A (en) * 1954-11-29 1958-08-12 Abraham I Reitman Float-operated valve
US2827916A (en) * 1955-11-14 1958-03-25 Clyde C Manchester Float valve
US3004748A (en) * 1959-07-16 1961-10-17 Vernco Corp Float valve
US3331387A (en) * 1964-06-24 1967-07-18 Walters Manuel Float control means for use in water closets and the like
US3987813A (en) * 1973-02-26 1976-10-26 Plasson Maagan Michael Industries Limited Presettable valve actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683908A (en) * 1986-11-07 1987-08-04 Brewer Daniel J Eccentric float apparatus
US5937455A (en) * 1992-11-19 1999-08-17 Donati; William R. Electrically operated toilet water inlet valve system having a variable fill level
KR100560126B1 (en) * 2004-04-27 2006-03-17 강헌순 Ball

Similar Documents

Publication Publication Date Title
US6687925B2 (en) Load resistant floor drain assembly
US4089139A (en) Segmented cylindrical reinforced plastic manhole structure
EP0180439B1 (en) Improved drainage system for basements
US5881759A (en) Air-ventilating valve
US4574832A (en) Float level adjustment means
US20210180307A1 (en) Adjustable Drain Assembly and Retrofit Kit for Adjustable Drain Assembly
US20210348390A1 (en) Drainage device for a construction, in particular a roof of a building or a terrace
US4400919A (en) Mobile home skirting system
US5468090A (en) Bending weir
US2598195A (en) Flush tank inlet valve
US3874176A (en) Irrigation control
KR101693219B1 (en) Valve support device
US3477190A (en) Integrated coping assemblies
US11851866B2 (en) Floor drain
KR100437736B1 (en) Automatic pump
US4060858A (en) Self-centering toilet valve
US2437068A (en) Drain connector for shower bath receptors
GB2126262A (en) Inspection chambers for drainage systems
US4622701A (en) Mechanical waste mechanism
KR200292368Y1 (en) Lever device for level control valve
US406877A (en) Franklin d
JPH0428333Y2 (en)
JP2606783B2 (en) Invert block
JPS6117086Y2 (en)
US1058851A (en) Self-adjusting outlet-box.

Legal Events

Date Code Title Description
AS Assignment

Owner name: F.F. SEELEY NOMINEES PTY. LTD., 3 ROTHESAY AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WRIGHT, PETER S.;REEL/FRAME:004437/0961

Effective date: 19850726

STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 8

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 12